Chu Ding Technology HAS-100B Portable Air Sampler / Viable Airborne Microbial Sampler

Overview

The Chu Ding Technology HAS-100B Portable Air Sampler is a compact, battery-powered single-channel air sampling pump engineered for quantitative viable airborne microbial monitoring in controlled and critical environments. It operates on the Anderson cascade impaction principle — a well-established, standardized method for collecting culturable microorganisms (e.g., bacteria, fungi, yeasts) onto agar-based growth media housed in standard Petri dishes. As specified in GB/T 18883–2002 (Indoor Air Quality Standard), this technique enables direct enumeration of colony-forming units (CFU/m³) following incubation and microbiological analysis. The HAS-100B is not a particle counter or non-viable aerosol monitor; rather, it serves as a primary tool for environmental monitoring (EM) programs requiring regulatory-compliant bioburden assessment in Grade A–D cleanrooms, isolators, laminar flow hoods, pharmaceutical manufacturing suites, hospital isolation rooms, and biosafety laboratories.

Key Features

• Compact handheld design with ergonomic grip and integrated carrying strap — optimized for field deployment and routine area qualification.
• Dot-matrix LCD display showing real-time flow rate, elapsed sampling time, remaining battery capacity, and operational status — enabling immediate verification of sampling integrity.
• Rechargeable nickel-metal hydride (Ni-MH) battery pack delivering up to 30 minutes of continuous operation at maximum flow (10 L/min) under typical backpressure conditions; supports extended shift-based monitoring with hot-swap capability.
• Rotatable sampling head (±90° vertical tilt, 360° horizontal rotation) ensures flexible positioning for wall-mounted, ceiling-mounted, or surface-level sampling without repositioning the entire unit.
• Autoclavable stainless-steel sampling head and removable Petri dish holder — compatible with standard 90 mm Petri dishes and validated for steam sterilization at 121°C, 15 psi, 15–20 min — supporting GMP-aligned aseptic handling protocols.
• Intelligent power management: LCD backlight deactivates after 30 seconds of inactivity; full system auto-shutdown occurs after 5 minutes of idle time (non-sampling state), minimizing unintended battery drain.
• Calibrated analog flow control with mechanical adjustment knob — allowing precise setting within 0–10 L/min range, traceable to NIST-traceable reference standards via optional external calibration verification.

Sample Compatibility & Compliance

The HAS-100B is validated for use with conventional nutrient agars (TSA, SDA), selective media (e.g., Sabouraud Dextrose Agar for fungi), and chromogenic formulations. Its impaction geometry maintains consistent aerodynamic cut-off diameters across the operational flow range, ensuring reproducible deposition efficiency for particles ≥0.65 µm (viable fraction). While not certified to ISO 14698-1:2003 (Biocontamination Control) or EU GMP Annex 1 (2022) as a standalone system, the instrument is routinely deployed within EM protocols that align with these frameworks when paired with qualified media, validated sampling durations, and documented environmental monitoring plans. It supports audit readiness for FDA 21 CFR Part 211, WHO TRS 961, and PIC/S PI 007–6 through consistent performance documentation and maintenance logs.

Software & Data Management

The HAS-100B operates as a standalone hardware platform without embedded firmware-based data logging or wireless connectivity. All operational parameters — including set flow rate, actual flow (via built-in analog sensor), sampling duration, and battery voltage — are manually recorded by the operator in paper-based or electronic environmental monitoring records (EMRs). For compliance with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available), users are advised to integrate HAS-100B usage into validated electronic quality management systems (eQMS) or LIMS platforms using standardized SOPs for manual entry, signature, and review. Optional external flow calibrators (e.g., DryCal DC Series) may be employed for periodic verification against ISO/IEC 17025-accredited calibration certificates.

Applications

• Pharmaceutical aseptic processing: Routine monitoring of Grade A filling lines, Grade B background areas, and isolator glove ports.
• Hospital infection control: Assessment of airborne bioburden in operating theatres, ICU ventilation outlets, and anterooms.
• Food and beverage production: Verification of air hygiene in high-care zones and fermentation chambers.
• Veterinary and agricultural research: Field-based microbial load characterization in livestock housing and hatchery environments.
• Academic and contract research laboratories: Method development and validation studies for airborne pathogen capture efficiency and disinfection efficacy testing.

FAQ

Is the HAS-100B compliant with ISO 14698 or EU GMP Annex 1?
The HAS-100B itself is not a certified system per ISO 14698-1 or Annex 1, but it is widely used within compliant EM programs when operated under validated protocols, calibrated regularly, and integrated into documented quality systems.
Can the sampling head be autoclaved?
Yes — the stainless-steel sampling head and Petri dish holder are fully autoclavable at 121°C, 15 psi, for 15–20 minutes, supporting sterile reuse in GMP environments.
What is the recommended calibration frequency?
Per industry best practice, flow calibration should be performed before each sampling campaign or at least daily when used in regulated settings; annual verification against traceable standards is recommended.
Does the instrument support multi-point sequential sampling?
No — the HAS-100B is a single-channel sampler. Sequential sampling across multiple locations requires manual relocation and reconfiguration between sites.
Is battery life affected by ambient temperature?
Yes — Ni-MH batteries exhibit reduced capacity below 10°C and accelerated self-discharge above 35°C; operation is recommended within 10–30°C for optimal runtime and accuracy.